Cleantech companies

Beijing Enterprises Urban Resources Group (北控城市资源集团有限公司) is a company that provides waste management solutions.

GreenGro Technologies is a company that manufactures and sells eco-friendly vertical cultivation systems.

Ambienthesis is a company specializing in providing reclamation, environmental remediation, and treatment services.

SMS group is a supplier of technology for producing and recycling metals.

Preem (formerly OK Petroleum) is an energy company that produces and supplies fuels, including renewable alternatives such as biofuels.

BioLargo delivers sustainable technology-based products that help solve problems threatening the world's supply of water, food, agriculture, healthcare and energy.

Renewable Innovations is a company that develops and provides hydrogen fuel cell and hybrid hydrogen power equipment.

KYOKUTO (株式会社きょくとう) is a provider of cleaning solutions.

Environmental Control Center (株式会社 環境管理センター) is a company that provides environmental consulting services.

Peerapat Technology Public Company (บริษัท พีรพัฒน์ เทคโนโลยี จำกัด (มหาชน), Peerapat Chemical Industry Company) is a manufacturer and supplier of chemical products.

Topsoe (formerly known as Haldor Topsøe) is a company that develops and supplies catalysts, process technologies, and electrolyzer systems for chemical and fuel production.

Birchtech (formerly Midwest Energy Emissions) is a company that provides specialty activated carbon technologies for air and water purification.